I have had this argument many times before. Sure some guys, probably most guys, will get away with it but not every machine is identical . Some elevators wil have different mass and different mass distribution and the flutter characterstics will vary slightly just as the aeroelasticity of each fuselage will vary slightly according to the glass layup. There are four or five primary defences against flutter:
Mass balance
Stiff structure
Minimal control circuit "slop".
and on aircraft which have powered controls, model or fullsize, powered by hydraulics or powerful servos MORE than enough for the job.

To me a tiny servo like a 3421 is OK but marginal just as I said BVMs servo spec for his original Bobcat were poor. when he specced 3421s for the rudder, which I said were totally inadequate (they proved to be) and fitted 9411s from the start, and the 3301 servo for the elevators were marginal (as SOME fliers found, to their cost to be the case) and upgraded them also to 9411s. I have had many emails from around the world telling me that they have so equipped their BobCats and had NO further recurrence of elevator softness)

No, unless each airframe is IDENTICAL then the argument that because some, most, models have been fine then there cannot be a problem, despite SOME other models having problems is, in my opionion, flawed.

In essence I have never heard of a model being lost because the servo power was too great, on the other hand I have heard of many, many machines being lost because the servos were not up to the job !

High speed jets demand servo power which is right up to the job in the most adverse circumstances and there ia absolutely no room for compromise or corner cutting here.

I rest my case.

Regards,

David Gladwin.